Guillain-Barré syndrome (GBS)
Years ago, my cousin was studying for a biology degree. They were working with microbes, and when it came to the Epstein-Barr specimens, her instructor said, “You don’t need to work under the hood with this one; it’s relatively benign. Being a skeptic, my cousin insisted on using the hood, anyway, an incident she well remembered not long afterwards, when it became widespread knowledge what havoc that particular virus could wreak. Seems what you don’t know (or what someone ELSE doesn’t know) really CAN hurt you.